Window-screen.



c. A. JOHNSON WINDOW SCREEN.

APPLICATION HLED MAY 1'. 1916.

1,235,694. I Y Patented Aug. 7,1917.

CONRAD A. JOHNSON, OE JAMESTOWN, NEW\YORK-.

Application filed Ma 1, ieie. Serial No. 94,579.

To all whom it may concern:

Be it known that I, Comm) A. JOHNSON,

a citizen of the United States, residing atthe city ofnlamestown, in thecounty of Chautauqua and State of New York, have invented certain newand useful Improve- I 'ments in Window-Screens, of which the following,taken in connection with the accompanying drawings, is a specification.

The invention relates to hollow sheetmetal window and screen frames, andthe object of the improvement is to provide-a.

simple-and strong sheet metal frame for both window .andscreenconstruction in which a rib is raised from the sheet metal 7 lengthwiseof the frame side and atubular.

slotted piece is slipped onto the same to ex'- 'tend over and. hold thescreen fabric and claimed.

filling strip and: also serve for a holding strip for by provi thespring for the guide strip. Fig. 3 is a perspective view of a-portion ofthe'top or bottom side of the screen frame showing the constructionofthe'same and the arrangement of the raised 'rib along the sideofsaidscreen frame and the tubular covering strip for said raised rib.- Fig. 4is a perspective view of the angular cornerbrace. F1g. 5 is aperspective view of a portion of the tubular slotted flat sheet metalcover and holding strip. Fig. 6 is a modification of the holding stripshown in Fig. 5; and Fig. 7

shows further adaptation of said modification shown in Fig. 6 with themodified form of the screen side adapted to receive a guard wire orwindow glass and hold it firmly against the frame side and the groovededge and guide stri Fig. 8 is a perspective view 0 one oft e springs forengaging the guide strip. F1g..9 1s a secwmioow-scnnnw.

Specification of Letters Patent.

ard wire or window glass, theremeans for the easy rewiring. of frames ofthis type without the use of: screws, putty, nails or similar devicesand tional view of the cross bar at line XX in Fig 1. i

ike charactersof reference referto' correspondlng parts in the severalviews. I

The numeral 10 designates the tubular sheet 'metal frame sides whichare-preferably made of one strip of metal folded cen- -trallylengthwiseat the inner point 11 and Patented Aug. 7, 917.

the contiguous folded inner portion -formed in a lengthwise groove13opening sidewise along the inner edge to receive the filling strip 14,which-is preferably of wood for the screen fabr1c'15. The remainingportions of the strip of metal are formed in a 'lehgthwise 'tube ,andthe two edges are united. on: the outer side in the top and bottom sidesin a flat return bend or double seam 12, as shown in Fig. 3.

a The lateral frame sides 20 are usually provided with lengthwisegrooves 28' in their outer edges "to slidably receive the gu de strips29 therein, one at each side. The groove'28 is formed by shaping areturnbend'in one edge of the sheet metal strip which bend is spaced so as tointerlock with a lengthwise return bend in the other edge, and the threethicknesses of sheet metal so placed together at 30 are then united byspot welding or similar means so, as to attach the sheet metal edgesfirmly together. The leaf springs 31 are attached walls of the'groove.28 thereby holding the spring 31 with freedom of movement at itsunattached end. The, central outwardly curved portion .of the spring 31bears agains the guide strip 29. The guide strip 29 may be made in anysuitable manner so that it is stifl' and strong.

To cover the strip 14 and groove 13 a T- shaped rail or rib 17 is bentfrom the sheet I metal tube side into the flat T-shaped form lengthwisealongthe inner edge of the groove 13 and a flat tubular sheet metal strp 18'1s provided with a lengthwise slot 19 which fits over the rib 17and onto the neck or stem 16. The inner, edge of the flattubular strip18 is extended over the groove 13 and, ontothe edge-of the sdreenfabric'15 thereby covering the groove 13 and the manner of. attachingthe screen fabric to they screen side, protecting the same from theelements and retaining the filling strip and I screen fabricinwpositioii.

In the modification of the frame side shown inFigs. 6 and 7, the tubularframe side 20 is formed from one strip with the 10 groove-13 along itsinner edge and with the shaped rib 17 along the/groove 13 and the inneredge of the tubular frame side 20'. The

' tubular retaining strip 21 is provided with the attaching lengthwiseslot 19 .to receive the rib 17 therein the same as strip 18. The

' change in thelformation of the strip being the angular bend 22 alongthe-inner portion 23 to provide for the reception of the edge 10 and 20fitting closely within the same so that said frame sides may be solderedtothe angular brace 26 thereby attaching said frame sides strongly toone another. The

filling strips 14 are preferably not mitered,

it being easier to fit said filling strips 'to' place if square ended,as also the ,coverstrips 18a as shown in Fig. 1. The frame is pro- ;vi'ed with lifts 27 for sliding the frame up and down, one ofthe lifts 27beingpreferably placed on the side opposite the springs 31 to aid inplacing the frame on the guides 'When it isnece'ssary to insert a cross.piece 34L in a screen frame, it isof course essential that it shouldhave the wire attaching groove 13 on; each edge, as shown a inlFig. 9.'The cross piece 34 is preferably made of twoistrips of sheet metal withthe groove 13-bent in each edge of ,one of said strips and the otherstrip bent channel shaped over the turned up edges ofthefirst strip andspot welded at 35, thereby'holding the two strips firmly together. Twoparalle.

spaced ribs 17 are bent up the sheetto slidably recelvethe tubular-1strip 13 thereon and substantially abut one; a another so as to give ametal so as leasing afpearance for the grooved side of e ea-i. '8

and protectingthe edge of the screen, abric-legeach Side of said crosspiece 3d,.

.It' is apparent that the cover strip of the guard wire or glass "24 aswellas a cover and holding-means. It also beautifies the frame sidecovering the method of at. tachment, yet being removableafrom, saidframe side so that either the screen fabric- Slide/b to hold saidfilling strip in said -18 "pro- .vides a guard for the edge of the wire*of a guard or pane o; glean. p V l 5. .n fabric 1 5,'a ndthe cover.strip -21 for the edge intense or the lass can belquickly and easilyremoved y sliding the tubular strip 18 or 21 endwise from the rib 17.While covering ingstrip and cloth or screen fabric firmly 1n the groove13 Without the use ofscrews, putt ,nails or similar devices, therebyovercoming all difiicultiesin rewiring the screen frame or replacing theguard Wire or a pane of glass.

I claim as new:

1. In a metal screen, a frame, each of the sides of saidframc comprisinga strip of metal folded lengthwise of its central portion, said foldedcentral portion shaped in a lengthwise groove opening sidewise, the

remaining portion of said strip formed in a tube with the edges of saidstrip squeezed together along the outer edge of the frame side so as toprov idea line of reinforcement throughout Silld last named frame side,

screen Wire, and a filling means to hold said screen wire in saidgroove;

2. In a screen, a frame having grooves to receive the screen fabric,filling Strips for holding the fabric in the grooves,.finishing stripsextending over the filling strips and concealing; the latter, and,inter-engaging -means between the frame and finishing strips for holdingthe latter inplace and for permitting removal of said finishing stripsfromthe frame by a relative movement between thetwo.

.3..A screen so rising av metallic frame having a groove along the inneredge, screen wer and a filling strip to hold ,said screen Wire in saidgroove, a rib on said frame the method of attachment it at the same timeH06- alongslde said groove enlarging outwardly from the side of saidframe, and a metallic I strip having 'a slot therein enlarging in--Wardly to slidably fit said rib and cover said groove to hold.- saidfillingwstrip in pos tion and retain said screen Wire.

4. A screen comprising a metallic frame having a groove along the inneredge, screen w re and a filling strip. to hold. said screen wire in saidgroove, a rib on said frame metallic strip having an gen therein oversaid g'r ove to a metal'screen, a frame com screen wire and means a forholding sai screen; wirein said sidewise alon lde sa d sldewisegrooves-and a tilbu lets otted t p fitting rib and i I I 1 0 In -I sheetmetal tabular sides. having siild wis e grooves therein along theirinner edges grooves, a rib are - alongside said groove enlarging outwalyuse I old the eg aria ering said sidewise groove to retain said fillingstrip and wire cloth in position.

6. In a metal screen, a frame comprising sheet metal tubular sideshaving sidewise grooves therein along their inner edges, screen wire andmeans for holding said screen wire in said sidewise grooves, a T- shapedrib bent from the sheet metal alongside said sidewisegroove, and a fiatslotted tubular metal strip to slidably fit over said rib and cover saidsidewise groove to retain said filling strip and wire: cloth inposition.

7. In a screen, a frame, a cross-piece having a pair of longitudinalgrooves, wire in the grooves, filling strips for vholding the wire inthe grooves, ribs adjacent the pair of grooves, and strips slidablyfitted over the ribs to cover said grooves and filling strips.

8. In a screen, a metal frame the sides of which are centrally foldedlengthwise to provide grooves opening outwardly on the front face of theframe, said sides being further folded to form side edge grooves one ofthe walls of the latter being formed of an intermediate folded part andthe other wall being formed of interengaging edge parts of said sides toprovide a wall of three thicknesses, screen fabric in said firstgrooves,

and fillingstrips to hold the fabric in position. 1

9. In a screen, a frame having grooves .to receive the screen fabric,filling strips for holding the fabric in the grooves, finishing 'stripsextending over the strips and concealoverhanging said first namedgrooves to enable a guard or the like to be'engaged with and held inplace by said overhanging parts. 10. In a screen, a frame having groovesto receive the screen fabric, filling strips to hold the fabric in saidgrooves, and finishing strips slidably connected to the frame andextending over said filling strips to hold the latter in place.

In testimony whereof I have afiixed my signature in the presence of twowitnesses.

- CONRAD A. JOHNSON.

' Witnesses: H. A. SANDBERG, B. E- 'ERICSON.

as. 4o

